Flexible-tube connection.



E. JAMES.

FLEXIBLE TUBE CONNECTION.

APPLICATION mio SEPT. 21. 190s.

Patented July 27, 1915.

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EDWARD JAMES, 0F CLEVELAND, OHIO, 'ASSIGNOR TO THE JAMES MANUFACTURING COMPANY, OF CLEVELAND, OHIO, A CORPORATION 0F OHIO.

FLEXIBLE-TUBE CONNECTION.

Specification of Letters Patent.

Patented July 27, Y1915.

Application led September 21, 190,8. `Serial No. 453,979.

T0 all whom it may concern -Be it known that I, EDWARD JAMES, citizen of the United States, resident of Cleveland, county "of Cuyahoga, and State of Ohio, have invented a new and useful Improvement in vllexible-'Iube Connections, of whichthe following is a specification, the principle of the invention being herein explained and 'the best mode in which I have comes necessary to securea iexible tube, as 1' of rubber, Ito a metallic or like rigid connecting member.

The object of the invention is the provision of connections of the class inhand that will fbe practical and economical in construction and withal pleasing and ornamental in appearance.

A To the accomplishment of the foregoing objects, said invention then consists of the means lhereinafter fully described and particularly pointed out in the claims.

The annexed drawing and 'the following description set forth in detail certain mechanism embodying the invention, lsuch disclosed means constituting, however, but several of 'the various mechanical forms in which the principle of the invention may be used.

`In said annexed drawing: Figure lrepresents in sectional view a' connecting member, or coupling, to one end of which is secured a fiexible tube in accordance with the present invention; Fig. 2 is' va view similar to Fig. l, illustrating the manner of thus securing said tube to the coupling member; Fig. 3 is a view, partly in sideelevation and partly in section, illustratinglanother adaptation of'such connection, together with a goose-neck for use in securing the tube to a gas fixture; Fig. fi illustrates the use of such goose-neck. in a -slightly different fashion; Fig. 5 illustrates another adaptation of the `rconnecting memberV and joint;

` and Fig. 6 illustrates the application of my lmode of connecting tubes to such lconnecting members, where the tube itself is not expansible asin the case of the tubing illus- 'tiated Iin the preceding figures.

Said member will be seen to ycomprise a metal casing A having an inturned flange a at one end and a .tapering tubular extension a at the other provided with an internal annular shoulder at; seated within the enlarged flanged end is an annular disk or thick washer a2 of elastic material, preferably rubber, the opening in said disk being designed to receive the end of a stove or wall cockv of some other connection for the ytransmission of fluid, as for kexample the goose-neck7 C, illustrated in Fig. t. This portion af ofthe casing, while tapering in form, does not incline very sharply yfrom the cylindricalfseat, wherein washer a2 isY held, so that the latter may be rotated within the casing about a transverse axis. As a result ytheinsertion and removal of such washer is very much facilitated as will be readily understood. Preferably the opening a3 in vthe tapering extension a is slightly contracted, and fitted in such contracted yopening is the endl of the hoseor rubber tube B that is to be connected with such casing. `ltloreoveni'vhereas the general conformation fof member A; is tapering, the portion thereof immediately adjacent to such contracted opening a?? is made substantially straight for a reason 'that will presently appear. To secure the tubes yend in the extension I employ an annular element or bushing preferably of "metal,v and of such diameter that when yfitted within rthe hoseend it will distend the Asame forming a shouldera/P, and prevent i'e- 'moval of the tube through the contracted opening of the casing. To insert such ring Ijsinply project the end of the tube well fwi'thin the enlarged portion of the casing, then insert the annular member or bead, which may be readily done (see Fig. 2) and finally 7pull the :tube and casing apart until said'inember is firmly seated in the contracted portion of the extension. A very tight joint is thus'initially had, preventing 'any possibility of the hose being ejected or cess of pressure against the inner side of the tube tends to press it tighter against the casing as the pressure increases. At 'the same time it should benoted that the effect of the straight section of the member A adjacent to opening a3 is to eliminate the tendency of the bead b to spring or work back, as is the case where the member tapers throughout its entire length.

I illustrate in Figs. 3 and 5 the utilization of this same mode of connecting the tube to avcasing D where the casing is of slightly different construction, being athreaded coupling member instead of a vconnection of they sort previously described. I further illustrate in these two gures just named a device for securing an effective joint between the two threaded members, such detail consisting simply in a lportion b of the same tube that is allowedl to extend beyond the annular wedging member t, the latter being inserted farther into the tube than in the first instance.. The effect of the member of course, will be just the same, but the extending part of the tube will contact either with the end of the other couplingmember, Where the latter is of the form shown Vin Fig. 3, or witha shoulder formed thereon for this purpose, a member D of the latter character being illustrated in Fig. 5. There is hence but a single joint in the connection through which fluid can escape, viz. between the end of the tube and the yend of the other coupling member, but this Y tion of the tube itself, a short section will serve. f

l/Vhere it is desired to secure to a connection,

tubing B of the flexible metallic construction that has lately come into use, consisting of superposed spirals so overlapped and connected as to form a fluid tight tube, a slight modification in my invention is necessary since the end of such tube, is not adapted to be distended into contact with the walls of the casing. I accordingly place a short section of tubing or ring of elastic material, b2 about the end of the tube B and then draw this down into the contracted portion of the connection. In effect, as will hence be obvious, the tube acts as the bead in the previous instance and the elastic ring fuictions as the end of the former elastic tu e.

r1`he goose-neck? C which I design to employ in conjunction with the foregoing connecting elements, I form of an integral casting comprising two short parallel portions c cijoined by a sharply rectangularly disposed portion c so as to provide a very n compact structure, instead of the usual structure composed of several extended pieces threaded together. Of the two parallel portions the one c2 is threaded' externally so as to be adapted to be secured into a connection D of the type illustrated'in conjunction therewith in Fig. 3, but to permit of its insertion in a connection A. of the type illustrated in Figs. 1 and 2 as shown vin Fig. 4, should this be more convenient or desirable. The other parallel portion c of the gooseneck is enlarged so as to provide a belllike terminal cawithin whichis secured, as in the other type of connection, a washer or disk c4 of rubber. The contracted, or normal, opening c5 in such portion of the goose-neck is designed in use to receive the end or tip of the gas fixture E, while washer c4 engages such fixture at a point removed from its end. By meansof this two-fold engagement the very rigidly held upon the fixture, any wabbling tendency being effectually overcome by the engagement at c5, while the disk of course affords a gas tight joint at the lower point where it engages the fixture.L

Other modes of applying the principle of my invention may be employed instead of the one explained, change being made as regards the mechanism herein disclosed, provided the means stated by any one of the following claims or the equivalent of such stated means be employed.

I therefore particularly pointy out and distinctly claim as my invention 1. In apparatus of the class described, the combination of a tubular casing having one end smaller than the other, the opening at the smaller end of said casing having an internal annular shoulder and being contracted to adiameter less than that of the remainder of the casing, and the portion of the inner peripheral wall of said casing adjacent to such small end being substantially straight; a hose fitted to such opening and projecting within said casing; and a nonexpansible annular member fitted within such hose-end, the latter with such member therein being drawn longitudinally so as to compress such hose-end against the straight portion of such casing and form an annular shoulder on the hose to prevent the removal of such end through such opening.

2. In an apparatus of the class described, the combination of a tubular casing having one end smaller than the other, the opening at the smaller end of said casing having an internal annular shoulder and being contracted to a diameter less than that of the remainder of the casing, and the portion of the inner peripheral wall of said'casing adjacent to such small end being substantially straight; a hose fitted to such opening and projecting within said casing; and a nonexpansible ring of substantially cylindrical form fitted within the mouth of the hose,

goose-neck is v the external diameter of such ring being removal of such end througl such openlnrger than the internal diameter of the ing. l l

hose whereby the end of the latter is dis- Signed by me this 18th day of August, tended, and such distended'hose-end, with 1908. f

such ring therein, being drawn longitudi- EDWARD JAMES. nally so als to compress such hose-end against Attested byf .the straight portion of said casing and form D; T. DAVIES,

an annular shoulder o n the Ihose to prevent JNQ. T. OBERLIN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

i Washington, D. C. Y 

